The IRWIN® Record® No.1 Mechanic's Vice has the following specification:
Jaw Width: 75mm (3in).
IRWIN® Record® Mechanic's Vice is rigid and robust. The body and sliding jaw are cast from close grained grey iron which is machined on all friction surfaces for a smooth, reliable action. Fitted with hardened steel jaws for extended life, they can be replaced when worn. The main steel screw has a two-start rolled acme thread for faster and smoother operation.
It has a fused steel handle that will bend before the vice can be overstressed. The safety stop prevents the slide from being separated from the body.
The most popular and widely used general purpose vice for light to medium-duty applications.
A full line of replacement parts are available.